Ask question

Ask question

All categories

3 years ago

9

FOR LondonCreamCakes no sure if its right but im trying to help.. lol dont mind all the tabs

1 answer:

MAVERICK [17]3 years ago

7 0

Answer:

It kinda helps but not really

Thanks for trying anyway doe!

Explanation:

You might be interested in

A 32.2 g iron rod, initially at 21.9 C, is submerged into an unknown mass of water at 63.5 C. in an insulated container. The fin

lorasvet [3.4K]

Answer : The mass of the water in two significant figures is, $3.0\times 10^1g$

Explanation :

In this case the heat given by the hot body is equal to the heat taken by the cold body.

$q_1=-q_2$

$m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)$

where,

$c_1$ = specific heat of iron metal = $0.45J/g^oC$

$c_2$ = specific heat of water = $4.18J/g^oC$

$m_1$ = mass of iron metal = 32.3 g

$m_2$ = mass of water = ?

$T_f$ = final temperature of mixture = $59.2^oC$

$T_1$ = initial temperature of iron metal = $21.9^oC$

$T_2$ = initial temperature of water = $63.5^oC$

Now put all the given values in the above formula, we get

$32.3g\times 0.45J/g^oC\times (59.2-21.9)^oC=-m_2\times 4.18J/g^oC\times (59.2-63.5)^oC$

$m_2=30.16g\approx 3.0\times 10^1g$

Therefore, the mass of the water in two significant figures is, $3.0\times 10^1g$

3 0

3 years ago

80cm^3 of oxygen gas diffused through a porous hole in 50 seconds how long wiil it take 120cm^3 of nitrogen (iv) oxide to diffus

inysia [295]

Answer: it will take 89.93secs

Explanation:Please see attachment for explanation

5 0

3 years ago

How do the particles that are dispersed in a colloid differ from the particles suspended in a suspension?

Fed [463]

Answer:B, the colloid particles are larger.

PLEASE GIVE BRAINLIEST AND WATCH OUT BEHIND YOU

5 0

3 years ago

Choose the incorrect statement from the following:

Oksana_A [137]

Answer:

d

Explanation:

Generally, it is transported through pipes so I think statement d is incorrect.

4 0

2 years ago

What occurs when energy is removed from a liquid-vapor system in equilibrium

yulyashka [42]

<span>The answer is that the number of water molecules increases and that of vapor decreases. When energy is removed from the system it would do so mostly as heat. Therefore the energy in the system would decrease and the molecules would vibrate at lower energies. Therefore, several water vapor molecules would turn back to water. </span>

4 0

3 years ago